Sash-lock.



J. M. MARTY.

SASH LOCK.

APPLICATION FILED 11m15.191s.

1,250,924., Patented Dec. 18, 191'?.

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UNITED sTATEs PATENT OFFICE;

JOHN MiMARTY, on CLEVELAND; o'i.-

i specification-0fLernsystem. patented! Die;A1-8',f=1-9i7;

Applicationiled December '15, 1916. i Serial-'No'. 137,121.1

Taall whom it may concern.' Y l Be it known that I, JOHN MQ MARTY, a citizen of the United States, residing: at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Sash-Locks, of'

which the following is a specification.

My invention relates to improvements 1n sash locks, and more particularly to thaty class or type known as ventilating'sash locks,? the object being, as the name implies, to enable either one or both sashes to be partly open for ventilation and at the'sam'e timelocked in such partiallyopened position against any, further movement of the same byl anyone from the outside.

The primary object of my inventionis to provide a generally improved lockl of this class which will be exceedingly simple in` cordance with the `change in position or lo-v cation of the lock.

A still further object of the invention is the provision of an improved lock of this class which will not only positively lock the upper and lower sashes in theirrespe'ctive' adjusted position but will also positively lock each sash independently of the other.

A'still further object is the provlsion of animproved lockof this class which cannot be' tampered or interfered withl by any one from the outside when thesasl-i' is vin a partiallyvopen or Ventilating position.

With abovelmentioned vand other'ends in view, my invention Consists in the -novelconstruction, arrangement, vand combination' of parts, hereinafter described, illustratedV Vin one of its embodiments in the accompanying drawings, and. particularlyv` pointed out inf the appended claimsa Q Referringfto 'the drawings, forming a part ofthisspecificatiom'Figure l, is a side eleva tion-rot` theimproved ventilating.- sash lock` as applied tothe upper cross. rail' of11.111113-l per-window sash, Y

fa, ,fr-Ont view oi: thersam; i.

Fig.3, ,a side elevation ofthe same as apf` plied to the upper cross' rail'of the lower sash, L f

Figa,afrontrview ofthe same. A,

l Fig. 5, a view of the underside of the attachinglloc/l casing or housing, detached.

Figf 6a central longitudinalA sectional view'of the same, illustrating the internal operating mechanism, more yin detail'. j

Figi 7, a'. rear view of thelock casing. or housing'. y j

Fig; 8, aperspectiveview of one of'the le'- v'efr 'actuatedcrank' arms within the casing for actuatingvthe sash locking plunger membersorrods; p

FigQv 9, a side lelevation ofthe main' actuat-vk ing or sash releasing .hand lever,detached;k

i Similar Y numerals ,ofr reference designate like parts throughout yallthe igures of the drawings'.

The-improved sash lock comprises an at-y tachingf'casing. or'housing l, adapted ytobeV attached to the upper central portion of thej upper cross rail2,"of the windowsash. The lock casing. or housing'v l, isadapted tojbe Vattached to the cross rail 2, of the sash` by means of vscrew'sfQ'and the icasing lor housing yl,`is" provided at its ends with pltmger guide or bearing openings la.

The window frame engaging plunger' members or rods 3, 'are slid'ably mounted in the plunger guide membersl la, andeXtend outwardly fro1n'tlie sash1 casing l, and: through the guide members,l saidplunger members 3, being preferably Vsupported"at their outerends'in,:plunger guide members 4,-said guide members'l, inK the presentfin-- stance, being in theformv ofbrackets secured" to the cross rail 2, ofth'e sash bymeans of screws 4a.' Y i c p y As a meansof positively,` locking the sash inf` adjusted positions andv 'independently of each'othenvthe inner or adjacent sides of 'the window frame arefprovided with fthe Irack members '51 providedV with --a series *of suitably spaced plunger receiving openings 5ft As a means of positively holding or Ypressing the plunger'members 3, injtheir projected or locked positions, the inner 'endsl off theVK plunger members 3, are y'spacedfronrfy eachj other within the casingl, and a ,compression` spring'', is 'mounted 'oni and interposedbe-4 tween" the inier 'ends," and as. `a means" providing a suitable'beaiing for the 'ends of4 thelsprig 6, and' the actuating mechanism hereinafter described, said inner or spaced ends of the plungers or rods 3, are prefer ably provided with cross pins 7. Y y

As a means of simultaneously actuating or retracting the plunger members 3, against the resistance of the spring 6, and thereby withdrawing the same from locking engagement with the rack 5, crank arms 8, are transversely pivoted in the casing l, through the medium of cross bearing screws 8a, said arms or members extending toward each other at the top and having their lower arms or member 8b. loosely connected to the inner ends of the plunger members 3, said arms being preferably bifurcated as at 8c, and straddling the inner ends of the plunger members as shown most clearly in Figs. 5, and 8, of the drawings. |The bifurcated arms or members 8", are adapted to bear against the crcss pins 7, only when manually operated for retracting the plungers 3, against the resistance. of the spring G, by the mechanism hereinafter described, and the loose connection permits the plungers to be moved inwardly against said spring independently of each other and of said crank arms and their actuating mechanism.

As a. means of conveniently assembling the parts and simultaneously actuating the crank arms 8, as well as adapting the improved lock to upper and lower sashes as shown in Figs. l, and 3, of the drawings, an interchangeable hand actuating lever 9, of a form adapted to the particular sash is removably mounted in transverse openings l", of the lock casing or housing l.

As a convenient means of readily assembling the parts as well as operatively connecting the lever 9, to the crank arms 8, whereby the latter will be simultaneously actuated to correspondingly actuate the plungers 3, the hand lever 9, is provided with oppositely disposed or laterally extending projections 9", said projections in the present instance, being formed by means of a cross pin or bar passing through the intermediate portions of the lever 9, directly between the crank arms 8, and beneath the horizontally extending portions thereof, so that when the hand lever 9, is moved outwardly and upwardly away from the sash rail 2, the engagement of the projections 9", with the arms 8, of the crank arm will operate the latter in an obvious manner.

As a means of preventing the unauthorized operation of the hand lever 9, used on the upper cross rail 2, of the lower sash, by any one from without and while the lower sash is partially elevated for ventilation (as by reaching in under the lower sash and upwardly with the hand or by the use of a stick or other implement) the lower depending portion of the hand lever, 9, is preferably provided with a guard plate 9, it being obvious that such guard plate 9, will prevent theoperation of the lever 9, from below in the manner stated and at the same Von the inner face 4side of the upper cross rail 2, of the upper sash, and the handle or lever 9, for use in such connection is extendedV as at 9d, to extend down and swing withl a pendulum like motion in front of the inner side of the upper sashas suggested in Fig. l, of the drawings, so that when the handle 9d, is swung inwardly or away from the sash to the requisite distance the plungers 3, will be withdrawn or retracted 'from engagement with the plates or racks 5.

It will thus be seen that the only change necessary in adapting the improved lock for use on the upper sash instead of the lower sash is simply a change in the manner of mounting or attachment and the substitu-l tion of a pendulum like lever for the form of lever shown in Figs. 3, and 4, of the drawings. Y

From the foregoing description, taken in connection with the accompanying draw- ,ings, the operation and advantages ofmy invention will be readily understood.

Having thus described one of the embodiments of my invention, what I claim and desire to secure by Letters Patent, is,-

1. A sash lock, comprising an attaching casing, spaced longitudinal plunger bars therein extending from opposite ends thereor, a compression spring in said casing between said spaced plungers and normally projecting the latter, crank arms extending toward each other and pivoted transversely in said casing and having bifurcated depending portions loosely connected to and adapted to draw said plungers toward each other against said spring and to permit theV latter to projectsaid plungers independently of each other, and an actuating lever transversely pivoted in and depending in frontl of said casing and provided with oppositely disposed arms engaging beneath and operating said crank arms to retract said plunger members when said actuating lever is elevated.

2. A sash lock, comprising a casing provided with oppositely disposed guide ends, window frame engaging plunger members mounted in said guide ends and spaced apart in said casing, cross pins in the spaced ends of said plunger members, a compression spring interposed between said cross pins in the spaced ends of said plunger members, crank arms pivoted in said casing above and loosely connected to said cross pins of said plunger members, and having their upper arms extending toward other, said loose connection permitting said plungers to ride and be moved inwardly independently of each other and of said crank arms, and an operating lever transversely pivoted in said easing above said spring and provided with oppositely disposed projections engaging with said inwardly extending arms and adapted to move said plunger members and cross pins toward each other against the resistance of said spring when said lever is moved to operate said crank arms.

3. A sash lock, comprising a sash-rail attaching casing provided with plunger' guides, window frame engaging plunger members mounted in said guides and spaced apart in said casing, plunger guide brackets carrying the outer ends of said plunger members, a compression spring interposed between the spaced ends of said plunger members, crank arms loosely connected to said plunger members opposite the ends of said spring and having their upper arms extending toward each other, and an operating lever in said casing between said crank arms and provided with lateral projections eX- tending within the planes of and engaging beneath said inwardly extending upper arms and adapted to retract said plunger members against the resistance of said spring only when said lever is moved in the one direction to operate said crank arms and to permit the independent movement of the latter.

et. A sash lock, comprising a casing, win dow frame engaging plunger members mounted therein and spaced from each other, a compression spring interposed between the spaced ends of said plunger members, cross pins in said spaced ends of said plungerl members and abutting against the ends of said spring, crank arms transversely pivoted in said casing and provided with depending bifurcated arms straddling said spaced ends of said plunger members and abutting against said cross pins, whereby the latter and said plunger may be moved inwardly independently of each other and of said crank arms, said crank arms having inwardly extending horizontally disposed arms above said spring, and an operating hand lever pivoted in said casing andprovidedwith oppositely disposed projections engaging said horizontally disposed arms when vmoved in the one direction only and adapted to operate said crank arms and retract said plunger members against said spring.

5. A sash lock, comprising a casing, window frame engaging plunger members mounted therein and spaced from each other, a spring interposed between the spaced ends ot said plunger members, attaching guide members for the outer ends of said plunger members, cross pins in said spaced ends of said plunger members and abutting against the ends of said spring, crank arms transversely pivoted in said casing and provided with depending bifurcated arms loosely straddling said spaced ends of said plunger members and abutting against said cross pins to permit of the independent riding movement of said plunger members independently of said crank arms, said crank arms having inwardly extending horizontally disposed arms above and movable vertically in the plane of said plunger members, and an operating hand lever in said casing and provided with oppositely disposed projections loosely engaging underneath said horizontally disposed arms and adapted to operate said crank arms and retract said plunger members against the resistance of said spring.

In testimony whereof have afiXed my signature in the presence of two witnesses.

JOHN M. MARTY. lVitnesses O. C. BILLMAN, IRA E. STUMP.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

